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IoT Gateway ECU-1251D

DI/DO equipped, cloud-compatible IIoT gateway

The ECU-1251D is an industrial communication gateway ideal for cloud-based IIoT applications such as smart factories and distributed power monitoring. It is equipped with a TI Cortex A8 (600MHz) CPU and 256MB RAM, featuring 2 Ethernet ports and 2 RS-232/485 ports, along with 4DI and 4DO digital I/O as standard. It also allows for the addition of Wi-Fi or LTE communication via a Mini-PCIe slot. Compatible with Linux OS and EdgeLink SDK, it supports major protocols such as Modbus, IEC-60870, and MQTT. With an extensive operating temperature range of -40 to 70°C, DIN rail compatibility, and a space-saving design, it is perfect for harsh environments.

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basic information

- CPU: TI Cortex A8 (600MHz) - Memory: DDR3L 256MB - Storage: 512MB NAND, equipped with MicroSD slot - Communication: 2×RS-232/485 (isolation option), 2×10/100 Ethernet - Digital I/O: 4DI (Wet Contact), 4DO (open collector) - Expansion: Mini-PCIe (supports Wi-Fi/LTE), equipped with USB port - Software: Linux OS, EdgeLink SDK, supports Restful API - Protocols: Modbus TCP/RTU, IEC-60870-104, MQTT - Power Supply: 10-30VDC, power consumption approximately 2.5W (@24VDC) - Operating Temperature: -40 to 70°C, humidity 5-95% (non-condensing) - Protection: DIN rail/wall mount compatible - Size: Compact design (see drawing) - Certification: CE, FCC

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Model number/Brand name

ECU-1251D

Applications/Examples of results

【Usage】 ■ Industrial IoT applications ■ Distributed monitoring and data collection ■ Cloud integration and remote monitoring ■ Protocol gateway ■ Security and reliability

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Model number overview
ECU-1251D-R10AA Equipped with TI Cortex A8, 2 LAN, 2 COM, 4DI・4DO, compatible with EdgeLink.

Recommended Products for Industrial Sites: Advantech Industrial IoT Systems & Devices Star Product Guide (2025)

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In 1983, Advantech (Advantech Co., Ltd.) was founded in Taiwan. For over 40 years, we have been developing high-quality and high-performance computers for industrial applications. As of 2024, we offer a lineup of over 3,000 various IoT devices. As the world's No. 1 manufacturer in the industrial computer market, with a presence in 95 cities across 26 countries, we aim to cultivate a prosperous future by solving social issues through AI × IoT platform services. *Source: OMDIA - No. 1 in global market share for industrial PCs, 42.5% (2023 edition)* In Japan, we established Advantech Co., Ltd. in 1997. In 2018, we formed a capital and business alliance with Omron Nogata Co., Ltd. to further expand sales and to quickly respond to market demands by offering design to production (DMS/ODM) services. By merging Taiwan's speed with the technological expertise we have cultivated over the years, we will establish a brand that meets the needs of our partners.